package com.zj.tool;


import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;

@Component
public class SpringUtil implements ApplicationContextAware {

    private static ApplicationContext applicationContext;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        if(SpringUtil.applicationContext == null) {
            SpringUtil.applicationContext = applicationContext;
        }
        System.out.println("---------------me.shijunjie.util.SpringUtil------------------------------------------------------");
    }

    //获取applicationContext
    public  ApplicationContext getApplicationContext() {
        return applicationContext;
    }

    //通过name获取 Bean.
    public  Object getBean(String name){
        return getApplicationContext().getBean(name);
    }

    //通过class获取Bean.
    public   <T> T getBean(Class<T> clazz){
        return getApplicationContext().getBean(clazz);
    }

    //通过name,以及Clazz返回指定的Bean
    public   <T> T getBean(String name,Class<T> clazz){
        return getApplicationContext().getBean(name, clazz);
    }

    public String getBeanName(String name){
        ApplicationContext applicationContext1 = getApplicationContext();
        for (String beanDefinitionName : applicationContext.getBeanDefinitionNames()) {
            if(StringUtils.endsWithIgnoreCase(beanDefinitionName,name)){
                return beanDefinitionName;
            }
        }
        return "";
    }

}
